Surface modification of PMMA/O-MMT composite microfibers by TiO2 coating

被引:27
|
作者
Wang, Qingqing [1 ]
Wang, Xin [1 ]
Li, Xuejia [1 ]
Cai, Yibing [1 ]
Wei, Qufu [1 ]
机构
[1] Jiangnan Univ, Minist Educ, Key Lab Ecotext, Wuxi, Jiangsu, Peoples R China
基金
中国国家自然科学基金;
关键词
Electrospinning; RF(ratio frequency) magnetron sputtering; TiO2; Microfibers; Water treatment; NANOFIBERS;
D O I
10.1016/j.apsusc.2011.08.013
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In the present work, poly(methyl methacrylate) (PMMA)/organically modified montmorillonite (O-MMT) composite microfibers were firstly prepared by emulsion polymerization combined with electrospinning, and then coated by nanosize titanium dioxide (TiO2) using RF magnetron sputter technique. The modified surfaces of PMMA/O-MMT composite microfibers were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), UV-vis spectroscopy and drop shape analyzer. Finally, the photocatalytic properties of TiO2 coated PMMA/O-MMT composite microfiber membranes were evaluated by degradation of methylene blue(MB) under UV illumination. The experimental results revealed that anatase-TiO2 and rutile-TiO2 nanoparticles were well spread and physically deposited on the surface of PMMA/O-MMT microfibers, and the wettability of the PMMA/O-MMT composite microfibers was improved after surface modification by sputter coating. Furthermore, the PMMA/O-MMT microfibers membrane coated with TiO2 performed well in photocatalytic degradation of MB. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码:98 / 102
页数:5
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